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n.. N. BENNETT, or BEANGHPOET, NEW YORK.. l.Letters Patent No. 70,154, Vdated October 29, 1867.

IMPROVEMENT 1N sINKINc WELL-TUBING.

TO ALLy WHOM IT, MAY' CONCERN:

Be-it known that I, R. N. BENNETT, of Branchport, in the county ofYates, and State of New York, have invented a certain new and useful Improvement in Sinking WellTubing; and Ido hereby declare that the following is a full and exact description thereof, reference being had tothe accompanying drawings, making part of this specification.

Figure 1 is a section of the lower end of my improved tubing.v

Figure 2, an elevaticnof the same, with the tubing proper elevated from the point, in the position for testing.

Figure 3, a perspective view, showing the point detached from the tubing proper. i

Figure 4, a plan of the star-shaped diaphragm.

Like letters of reference indicate corresponding parts in all. the figures.` i

My invention consists in the peculiar form and construction of the point and its shank, whereby the well is easily tested without admitting sand. and the outside of thc tubing is free and uncncumbcred, and whereby the point may be raised again with the tubing, and not be lost; also in the employment of instar-shaped 'diaphragrn attached to thetop of the shank, cutting off the passage in the centre of thc'tubin'g, thereby having a tendency to precipitate the sand or bring it in contact with the sides of the tubing, where the friction will prevent `it from rising. i

As represented in the drawings,` A is an ordinary length of tubing, which is driven intothe carthby positiv'e force. In this fits the shank B of the opening point Ci The point is made square, in cross-section, instead of round, as usual, the advantage ofwhich is that it retains its position better indriving, and holds more firmly in place when the end of the tubing is elevated to admit water. The shank is of peculiar construction. For a suitable l'cngthabove thc point it is made-cylindrical, filling the tubing, as shown at a. `Above' this it is bev`V oiled or chamfered oif, asshown at J b. It then continues upward the proper length, forming a iiatvthiubar, e, 'and at the top is secured bya pin, d, which rests in a' longitudinal slot,f, o'f the bar, -and is seeuredin thesides of the tub-ing. 0n top of the shank is secured a star-shaped diaphragm, g, which cuts oii' the passage in the centre of the tube, and causes the 'contents to 'pass up around the diaphragm, on the outside, throughithe star openings.

A. device is now in use in which the end of the tubing proper rests in or .over a hollow shank, forming the V point, and when the same is driven the tubing is raised to open holes in the periphery to admit watery., Imdriving it is necessary to stop frequently and open the tubing to test-'forl water. In this device the holes in the periphery draw in sand laterally, which soon fills the lower cndof the tubing, so that the parts cannot be properlyclosed` again. My invention is specially designed to nbviate'tbis diliiculty. Intesting I simply raise-the tubing justabovo the chamfers 6 5, as shown in iig. 2, which admits water at that point.` In this manner, drawing upward from the holejust madeby the opening point, but littlf sand is drawn Vin, and that settles back again when tho suction is removed. i l VDeviceshave before been used in which the point isdriven down to-admit water at the end of the tubing,

lbut thc pointhas been 'sconnected from the tubing so that the pointcould not be raised again, and consequently testing could not bc accomplished. While I can test at any time I can also withdraw the point with the tubing. By this arrangement the shank issituated compactly inside thetubing, so as not to interfere in the leastlwith driving, and so as notto create undue friction. The 'star-shaped diaphragm g serves asa check to the sand in the centre ofthe tubing, where `the current is strongest, and precipitates it or throws it to the outside, next the 'sides of the tubing, lwhere the great friction will prevent it from passing upward. It will be noticed that by securing the diaphragm to the top of the shank it will always stand at the same tleiglifitom the water, u o matterY how muchthe tubing itself may he adjusted Aup and down. This is a matter o'f much importance, to prevent the deposit of sand near the induction. Were the 'diaphragm attached stationary the tube above the shank, it might be i'aised to such a height as to bc uselessI in preventing the ingress of sand at thc bottom.

What I'claim as my'inventim'and desire to Asecu-re by Letters Patent, is

1.- '.lhe point C, with lits shank "B, provided with thc'cylindrical portiona, the chamfers b I1, and thc flat portion c, and attached by the slot and pin f-d, when combined withthe `tubing A in the mannerand for the4 lpurpose herein setforth, 1 I i 2. The combination, with the shank B, of the star-shaped diaphragm y, arranged and operating in the manner and for the purpose specified.

In witness whereof I have hereunto signed my Anaine in the `presence of two subscribing'witnc-sses.

r n. N. BENNETT.

Witnesses:

B. Ff Oscoop. J. A. Davis. 

